# Robust CAPTCHAs Towards Malicious OCR

> Research article (IEEE Transactions on Multimedia, 2020) · cited 23× · AI/ML

**Wikidata**: [openalex:W3046953693](https://www.wikidata.org/wiki/openalex:W3046953693)  
**Source**: https://4ort.xyz/entity/robust-captchas-towards-malicious-ocr